Not in the published, peer reviewed sense. But the group of doctors at Rikshospitalet, that treated some of these patients, is confident that the vaccine is the

Not in the published, peer reviewed sense. But the group of doctors at Rikshospitalet, that treated some of these patients, is confident that the vaccine is the only plausible explanation. https://www.vg.no/nyheter/innenriks/i/KyGv2G/professor-says-cause-of-rare-bloodclots-in-people-vaccinated-with-astrazeneca-has-been-found https://www.vg.no/nyheter/innenriks/i/KyGv2G/professor-says-... Quoting from the somewhat poorly translated VG article: >"We have the reason [for the blood clots]. And there is no other thing than the vaccine which can explain that we have this immune response, says Holme." >"[...] we have no other history with these patients that could create such a severe immune response. I am confident that these antibodies is the reason, and I see no other reasons than it being the vaccine that triggers it" Original, in Norwegian: https://www.vg.no/nyheter/innenriks/i/QmwR1V/professor-om-mistenkte-vaksinebivirkninger-aarsaken-er-funnet https://www.vg.no/nyheter/innenriks/i/QmwR1V/professor-om-mi...